METHOD FOR DISTRIBUTION OF INTERFONE CHANNELS, COMMUNICATION METHOD, SYSTEM AND INTERPHONE.

专利摘要:
method for distributing intercom channels, communication method, system and intercom. a method for distributing intercom channels, a method of communication. a system and an intercom are provided. the method for distributing intercom channels includes; according to the subnet to which the intercom belongs, to acquire the resource information of the corresponding subnet, to determine a control channel and channels and service channels that can be used by the intercom, the number of service channels is greater than or equal to 2. different subnets correspond to different channel resources, wait in the control channel in case of waiting. a communication method and an intercom system, as well as an intercom are also provided by the invention. the technical solutions of the invention improve spectrum utilization efficiency, resolve channel interference, shorten the time required to set up a call, and reduce the likelihood of a call collision.
公开号:BR112012004403B1
申请号:R112012004403-6
申请日:2010-09-03
公开日:2021-03-23
发明作者:Ruihua Yin；Bingyan YU；Xiongbiao Jiang
申请人:Hytera Communications Corp., Ltd.；
IPC主号:

专利说明:

[0001] The invention relates to the field of Land Mobile Radio communication (MRL) and, more particularly, it concerns the method of assigning channels to a radio, a method of radio communication, communication system and radio. BACKGROUND OF THE INVENTION
[0002] With the rapid development of the economy, radios, as a flexible, convenient and fast means of communication, have received more and more attention. The radio market is prosperous, but chaotic, and there are problems, such as floods of counterfeit and inferior products on the market, management of professional radio being out of control, frequency bands being used in disarray, and potential risks being brought to safety. Social.
[0003] 1. Grave interferência entre rádios. O uso não-padrão do espectro de frequências, mesmo o uso de banda cruzada, é suscetível à interferência de outros equipamentos e é propenso a interferir com outros equipamentos sem fio que operam em bandas dedicadas. 2. A baixa eficiência de utilização do espectro de frequências. Na falta de uma gestão unificada, a definição arbitrária de frequência de comunicação de acordo com o desejo dos usuários leva a fenômenos que algumas bandas estão lotadas, enquanto algumas estão ociosas, assim, a eficiência de utilização das faixas é baixa e, além disso, um rádio convencional forçosamente ocuparia um canal independentemente ou não de uma chamada a ser realizada e negaria usuários em outro grupo a usar o canal, portanto, a eficiência da utilização dos canais é baixa. Currently, there are the following prominent problems in the use of radios with an intermediate and lower extremity: 1. Record interference between radios. Non-standard use of the frequency spectrum, even the use of crossbands, is susceptible to interference from other equipment and is prone to interfering with other wireless equipment operating in dedicated bands. 2. The low efficiency of using the frequency spectrum. In the absence of a unified management, the arbitrary definition of communication frequency according to the users' desire leads to phenomena that some bands are crowded, while some are idle, thus, the efficiency of using the bands is low and, in addition, a conventional radio would forcibly occupy a channel regardless of whether or not a call was made and would deny users in another group to use the channel, so the efficiency of using the channels is low.
[0004] In general point-to-point communication mode, which is the conventional communication mode as the main communication solution in the current market and is common in commercial use, communication is implemented as a group call using a frequency point. As shown in Figure 1, for radio terminals in the same region, under the conditions of the same radio frequency carrier and the same tone signaling, when initiating a call by pressing a PPT - Push to talk button, any of the radio terminals can set up the call with any of the other radios in the region that are within the reception range to complete the communication. The conventional communication mode, despite having advantages of low price, simple operation, easy to use, etc., has obvious disadvantages. The increase in the number of users of radio terminals puts pressure on the resources of the frequency spectrum, and signal interference becomes the most challenging problem encountered by terminal users.
[0005] 1. O tempo necessário para configurar uma chamada é longo. Porque um canal de controle e 159 canais compartilham uma faixa de frequência de 2M, quando a carga de negócios é pesada, o tempo, consumido na busca por um canal ocioso aumenta significativamente, e, assim, o tempo necessário para configurar uma chamada é muito longo. 2. A probabilidade de colisão de chamada é alta. Uma vez que todas as instruções de configuração de chamada sem controle central são enviadas em apenas um canal de controle, quando as chamadas ocorrem com frequência, colisão é provável de ocorrer, levando ao fracasso das chamadas. 3. A probabilidade de erro de julgamento de status do canal é alta. Devido à interferência entre canais e pausas durante uma chamada, durante uma verificação de um canal ocioso, erro de julgamento, tais como determinar um canal ocupado como um canal ocioso ou determinar um canal ocioso como um canal ocupado, é provável que aconteça. 4. O tempo de uso da bateria é curto. Uma vez que todas as instruções de configuração de chamada sem controle central são enviadas em apenas um canal de controle, o rádio dentro do escopo de chamada precisa receber cada uma das instruções, assim, o tempo do terminal em operação para receber o estado é aumentado consideravelmente, o que afetará o tempo de vida útil da bateria. Existing techniques, such as Short Range Digital Radio (DSRR) (l-ETS 300 168) proposed by the European Telecommunications Standards Institute (ETSI), China's non-central control radio technology and so on, have disadvantages of consume time in setting up the call and energy consumption and therefore are limited in development and promotion. As shown in Figure 2, non-central control radios in China refer to radio equipment developed and studied, based on the specification of the "communication system addressing multiple 900 Μ non-central control channels". Non-central radio control generally has the following disadvantages: 1. The time required to set up a call is long. Because a control channel and 159 channels share a 2M frequency range, when the business load is heavy, the time spent searching for an idle channel increases significantly, and thus the time required to set up a call is very long. 2. The probability of a call collision is high. Since all call setup instructions without central control are sent on only one control channel, when calls occur frequently, collision is likely to occur, leading to failure of the calls. 3. The probability of error in judging channel status is high. Due to interference between channels and pauses during a call, while checking an idle channel, error of judgment, such as determining a busy channel as an idle channel or determining an idle channel as a busy channel, is likely to happen. 4. The battery usage time is short. Since all call setup instructions without central control are sent on only one control channel, the radio within the call scope needs to receive each of the instructions, so the time the terminal is in operation to receive the status is increased considerably, which will affect battery life.
[0006] Taking into account the above disadvantages of low frequency spectrum utilization efficiency, poor anti-interference capability and the long call setup time in the state of the art, a problem to be solved by the present invention is to provide a method of communication of auto-addressing to a radio.
[0007] In the present invention, the technical solution to solve the above problem is to propose a method for assigning radio channels. The method includes:
[0008] Based on a zone to which the radio belongs, acquire information about corresponding zone resources and determine a control channel and traffic channels available to the radio, the number of traffic channels being greater than or equal to 2; different zones corresponding to different channel resources, and
[0009] Stay in the control channel in case of waiting.
[0010] The present invention also provides a radio. The radio includes: A unit of a configuration adapted to acquire, based on a zone to which the radio belongs, information of corresponding channel resources of the zone, and to determine a control channel and the service channel available to the radio, the number of channels of traffic being greater than or equal to 2; the different zones corresponding to different channel resources, and a waiting processing unit adapted to remain in the control channel, which is determined by the configuration unit, in the case of waiting.
[0011] The present invention also provides a method of communication applicable to a radio. The method includes: divide different channels into more than two zones, where different zones include different channels, and each zone includes a control channel and two or more traffic channels; configure for the radio one of the zones to which the radio belongs, in which the radios belonging to the same zone belong to the same subscriber unit and based on the zone to which the radio belongs, acquisition of resource information from the corresponding zone and determination of a control channel and traffic channels for the radio, and remain on the control channel when the radio is in standby mode, scanning the radio's traffic channels and establishing communication on an idle traffic channel when a call is initiated.
[0012] The present invention also provides a communication system applicable to radios. The communication system includes: more than two radios, each of which belongs to a zone, where the zone includes a control channel and two or more traffic channels, different zones include different channels, and radios that belong to the same zone, remain in the control channel of the same zone, in case of waiting, look for the traffic channels of the same zone and establish a communication in an idle traffic channel sought when a call is initiated.
[0013] Effect of the invention: through the acquisition of information about corresponding zone resources based on a zone to which the radio belongs and the determination of a control channel and traffic channels available for the radio, in which different zones correspond to channel resources different, radios in the zone and radios in other zones will not interfere with each other. The fact that different zones use different channel resources avoids channel interference between different zones, avoids clutter in the management of channel resources, prevents the mass use of some frequency bands and thus causes traffic congestion, as well such as low frequency bandwidth efficiency, that is, it reduces the likelihood of call collisions. The fact that the radios in the zone remain in the control channel in case of waiting avoids wasting traffic channel resources and improves the efficiency of using the channels. In addition, by dividing into zones, when making a call, radios in the same zone will only have to determine the traffic channels available in the zone, instead of searching for all channels, which reduces the time required to establish a call. .
[0014] 1. melhorar a eficiência de utilização do espectro de frequências; 2. resolver o problema de interferência entre canais; 3. encurtar o tempo para configurar uma chamada; 4. melhorar o tempo de vida útil da bateria e 5. reduzir a probabilidade de colisão de chamadas. To summarize, the communication method and the radio provided by the present invention have the advantages of: 1. improve the efficiency of use of the frequency spectrum; 2. solve the problem of interference between channels; 3. shorten the time to set up a call; 4. improve battery life and 5. reduce the likelihood of call collisions.
[0015] The present invention is further illustrated below in conjunction with drawings and embodiments of the present invention. In the drawings: Figure 1 is a schematic diagram of a communication mode for conventional radios; Figure 2 is a schematic diagram of a communication mode for non-centered radios; Figure 3 shows a schematic flow chart of a method for assigning radio channels according to a preferred embodiment of the present invention; Figure 4 is a schematic flow chart of a communication method applicable to a radio according to an embodiment of the present invention; Figure 5 is a schematic diagram of a communication mode for a self-addressed call. Figure 6 is a diagram of the frequency configuration for the zones; Figure 7 is a schematic diagram showing frequency reuse; Figure 8 is a schematic diagram of a method for configuring channels in a zone; Figure 9 is a schematic flowchart for implementing a self-addressing call; Figure 10 is an example diagram of frequency reuse in different regions. Figure 11 is an example diagram showing channel allocation in a zone; Figure 12 is a schematic flowchart for automatically configuring an idle channel in a zone; Figure 13 is a schematic flowchart for a call if a traffic channel is released at the end of a call; Figure 14 is a schematic flowchart for a call in the case of releasing a traffic channel when releasing a PPT button; Figure 15 is a schematic flow chart for a radio call in accordance with an embodiment of the present invention; Figure 16 is a schematic flow chart for a radio call according to another embodiment of the present invention; Figure 17 is a schematic flow chart for a radio call according to another embodiment of the present invention; Figure 18 is a structural schematic diagram of a radio according to an embodiment of the present invention; Figure 19 is a structural schematic diagram of a radio according to another embodiment of the present invention; Figure 20 is a schematic structural diagram of a radio according to the further embodiment of the present invention; Figure 21 is a schematic flow chart of a communication method applicable to a radio according to an embodiment of the present invention, and Figure 22 is a structural schematic diagram of a communication system applicable to radios according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION
[0016] For greater recognition and understanding of the structural characteristics and effect of the present invention, detailed illustration is done in conjunction with the preferred embodiments and the drawings.
[0017] The present invention provides a method for assigning radio channels, which supports, for example, but not limited to, voice service and data service. The flowchart of an embodiment of the channel assignment method for a radio, as provided by the present invention is shown in Figure 3. The method includes 300: Step 301, based on a zone to which the radio belongs, acquire information about corresponding zone resources and determine a control channel and traffic channels available to the radio, the number of traffic channels being greater than or equal to 2; different zones corresponding to different channel resources, and Step 302, stay in the control channel in case of waiting.
[0018] In one embodiment of the method for assigning radio channels, since the channel resources are assigned to different zones and the radios use the channel resources assigned to the zone to which the radios belong, the radios in the zone and radios in other zones they will not interfere with each other. The fact that different zones use different channel resources avoids channel interference between different zones, avoids clutter in the management of channel resources, prevents the mass use of some frequency bands and thus causes traffic congestion, as well as low frequency bandwidth utilization efficiency, ie, reduces the likelihood of call collisions. The fact that the radios in the zone remain in the control channel in case of waiting avoids wasting traffic channel resources and improves the efficiency of using the channels. In addition, by dividing into zones, when making a call, radios in a zone will only have to determine the traffic channels available in the zone, instead of searching for all channels, which reduces the time required to establish a call. .
[0019] 1. procurando uma zona ociosa e configuração da zona pesquisada ociosa como a zona à qual o rádio pertence. No caso em que a predefinição de zona durante a fabricação do rádio é a mesma usada em uma zona na proximidade ao usar o rádio, uma zona ociosa pode ser procurado primeiro, pesquisando as zonas, e a zona ociosa procurada é definida como a zona à qual o rádio pertence. 2. definição de uma zona pré-determinada como a zona à qual o rádio pertence. Para a zona à qual o rádio pertence, uma zona pré-determinada pelo usuário também podem ser usada, que pode ser determinada pelo usuário de acordo com a informação conhecida. In another embodiment of the radio channel assignment method, as provided by the present invention, a zone preset during radio manufacture can be used directly as the zone to which the radio belongs, or the zone to which the radio belongs can be configured, usually in two ways: 1. looking for an idle zone and configuring the searched idle zone as the zone to which the radio belongs. In the event that the zone preset during radio manufacture is the same as that used in a nearby zone when using the radio, an idle zone can be searched first, by searching the zones, and the searched idle zone is defined as the zone next to it. which radio belongs to. 2. definition of a predetermined zone as the zone to which the radio belongs. For the zone to which the radio belongs, a zone predetermined by the user can also be used, which can be determined by the user according to the known information.
[0020] In another embodiment of the radio channel assignment method, as provided by the present invention, a method for initiating a radio call is provided: fetch an idle traffic channel by looking for traffic channels when a call is initiated; send, through the control channel, a call setup instruction containing a channel number of the idle traffic channel, in order to notify a radio called to switch to the idle traffic channel for the communication establishment; enter the idle traffic channel to establish communication with the called radio, and release the idle traffic channel and return to the control channel to keep on hold. For a description of the method for initiating a radio call, reference can be made to Figure 15.
[0021] 1. liberar o canal de tráfego ocioso após um botão PPT do rádio a ser liberado; 2. liberar o canal de tráfego ocioso após o botão PPT do rádio a ser liberado e um tempo de redefinição de chamada predefinido está ligado, ou 3. liberar o canal de tráfego ocioso após a comunicação ser concluída. There are three ways to free the idle traffic channel: 1. release the idle traffic channel after a radio button PPT to be released; 2. release the idle traffic channel after the radio's PPT button is released and a predefined call reset time is on, or 3. release the idle traffic channel after communication is completed.
[0022] For related content on the release of the idle traffic channel, refer to Figures 16-17.
[0023] After a called radio (one or more radios in the same zone), with which the calling radio wishes to communicate, receives a call setup instruction instruction from the control channel, the called radio obtains the number of the calling channel. a certain traffic channel from the call setup request instruction and enters the specified traffic channel to establish communication with the other party.
[0024] In the present invention, the radio communicates with at least one of the other radios in the zone to which the radio belongs using the channel resources assigned to the zone. All radios in a zone constitute a subscriber unit, each zone to which a subscriber unit corresponds is assigned a different number, and each zone is assigned with different channel resources.
[0025] Zone numbers can be reused, since the distance between the subscriber units is greater than a reuse distance S (S> 0) determined by the radio's transmission power. The same number corresponds to the same set of frequencies.
[0026] A. Para um recurso de frequência de N MHz (N> 0), o recurso de frequência é dividido em N x 1000 / M canais tomando um espaço canal de M kHz (M> 0), e cada canal indica um ponto de frequência. B. Cada zona é atribuída com L canais, os L canais de cada zona representam um conjunto de frequências, e o recurso de frequência de N MHz é dividido em N x 1000/M/L b zonas (L> 0); as zonas atribuídas a unidades de assinantes são numeradas de 0 a N x 1000/M/L-1, e os números das zonas estão em uma correspondência um para um com os conjuntos de frequências atribuídas às zonas. In one embodiment of the present invention, the frequency resources of each zone can be divided into several channels using a channel spacing method, and the resulting channels represent a set of frequencies, then one of the multiple channels is defined as a control channel and the others are defined as traffic channels. In another embodiment of the present invention, the processing of frequency resources in the radio channel assignment method is as follows: A. For a frequency resource of N MHz (N> 0), the frequency resource is divided into N x 1000 / M channels taking a channel space of M kHz (M> 0), and each channel indicates a frequency point . B. Each zone is assigned with L channels, the L channels in each zone represent a set of frequencies, and the N MHz frequency resource is divided into N x 1000 / M / L b zones (L>0); the zones assigned to subscriber units are numbered from 0 to N x 1000 / M / L-1, and the zone numbers are in a one-to-one correspondence with the frequency sets assigned to the zones.
[0027] In one embodiment of the present invention, the zone frequency configuration also includes: when the distance between the subscriber units is greater than the reuse distance S (S> 0), which is determined by the radio's transmission power, the same numbers of zone can be reused, where the same zone numbers correspond to the same frequency sets.
[0028] In one embodiment of the present invention, the frequency set assigned to each zone is a frequency set free from third-order intermodulation interference and / or interference from adjacent channels; Different subscriber units use different sets of frequencies free from third-order intermodulation interference and / or adjacent channel interference. Using such a set of frequency, the probability of error in judging the status of the channel will be reduced considerably, in order to avoid the problem of determining an occupied channel as an idle channel or determining an idle channel as an occupied channel.
[0029] Figure 15 is a schematic diagram of a radio calling procedure 1500 in accordance with an embodiment of the present invention.
[0030] In step 1501, a calling radio, which is remaining on the control channel and wants to initiate a call to at least one called radio in the zone to which the calling radio belongs, automatically searches for a traffic channel idle in the traffic channels, where it starts of the call can be implemented, for example, with the user pressing the PPT button;
[0031] In step 1502, switch to the control channel and send a call instruction to the called radio, in order to notify the called radio to switch to the idle searched traffic channel;
[0032] In step 1503, the communication with the radio called on the searched traffic channel;
[0033] In step 1504, after communication is complete, release the traffic channel and switch to the control channel to wait for the next call.
[0034] Figure 16 is a schematic diagram of a radio call procedure 1600 according to another embodiment of the present invention. Steps 1601-1603 are the same as steps 1501-1503 in Figure 15, and the differences are found in steps 1604-1606.
[0035] In step 1604, when the PPT button to initiate a call, which has been used, is detected not to be used, determine whether the conversation with the called radio is ended or if a pre-established call reset time is active, if yes, proceed to step 1605, if not, proceed to step 1606.
[0036] In step 1605, sending an end-of-conversation instruction to the called radio or ending the call automatically, and the calling radio and the called radio releasing the traffic channel and switching to the control channel to wait for the next call.
[0037] In step 1606, the calling radio and the called radio still occupying the traffic channel to continue the call, and the two parties continue to communicate with each other on the traffic channel.
[0038] Figure 17 is a schematic diagram of a 1700 radio call procedure according to the further embodiment of the present invention. Steps 171-1703 are the same as steps 1501-1503 in Figure 15, and the difference is in steps 1704-1705.
[0039] In step 1704, if the calling radio detects that the PPT button to initiate the call, which was used, is not used, sending an end-of-conversation instruction to the called radio or automatically ending the call.
[0040] In step 1705, the calling radio and the calling radio releasing the traffic channel and switching to the control channel to wait for the next call.
[0041] The technical solutions of the present invention are illustrated in detail below in conjunction with specific embodiments.
[0042] Figure 4 is a schematic flow chart of a communication method for a radio according to an embodiment of the present invention. The communication method for a radio includes configuring the frequency of zones 401 and automatically configuring the idle channels 402. The configuration of the frequency of the zones can be carried out according to Figure 3. Automatically configuring the idle channels 402 includes: unifying the management channels in each zone and automatically assign idle channels according to the requirements of the service.
[0043] As shown in Figure 4 and Figure 5, in the present invention, technology for configuring zone frequency and technology for automatically configuring idle channels are used, and both voice and data services are supported, in order to solve the problems mentioned above in conventional communication. The technology for the frequency configuration of zones refers to the realization of a centralized and unified management of frequency configuration resources, so that each subscriber unit selects a zone with a number, each zone includes a set of frequency free from third order intermodulation interference and adjacent channel interference, and different subscriber units will be used for different frequencies free of third order intermodulation interference and adjacent channel interference. The technology for automatically configuring idle channels refers to the unification of channel management in each zone and automatically assigning idle channels according to service requirements. I. Setting frequency of zones
[0044] (1), in the following description, how to configure the frequency point resources so that users can make rational use of the frequency point resources and the problems of interference and call collision can be avoided as much as possible, is illustrated in Details. Generally, the frequency of zones is configured according to the following steps: 1. Take frequency resources of N (N> 0) MHz, as an example, using a narrowband technology M kHz (M> 0), the resource frequency of N (N> 0) MHz is divided into N * 1000 / M channels, and each channel represents a frequency point. Below, exemplary illustration is made using specific exemplary numerical values: resources Frequency of N MHz being 1 MHz, frequency point being 1MHz, the channel spacing of M kHz being 6.25 kHz (also, the channel spacing of M kHz can be 12.5 KHz or 25 KHz, or other spacing frequency) and the number of channels is 160. However, the present invention is not limited by the specific numerical values above, and other numerical values can be used for the resources frequency. 2. assuming that each zone is assigned with L channels free from third-order intermodulation interference and adjacent channel interference (L> 0 and the present invention is not limited to the number of L channels), the 160 channels can be assigned to N = 160 / L subscriber units (zones) in a given region for use, and each zone is identified with a number (such as Zone 0, ..., Zone N), as shown in Figure 6. The value of L is calculated using the Erlang formula, and is collectively determined by the total number of users, the average traffic, the average call duration and the percentage of lost calls. For the specific calculation, see the description of an example below. 3. The number of each zone corresponds to a set of frequencies free from interference from third order interference and adjacent channel interference, and the channels in the set of frequencies free from interference from third order interference and interference from the adjacent channel are labeled with channel numbers. Once the zone number is determined, the frequency points of the channels in a zone are thus determined. In other words, the channel numbers in a zone correspond to points of fixed frequency.
[0045] Illustration of the set of interference-free frequencies of third-order intermodulation and adjacent channel interference: The third-order frequency that causes intermodulation interference meets fx = fi + fj-fk or fx = 2fi-fj, where fi, fj, fk are any three frequencies in a set of frequencies (f 1, f2, ... fL). If at the defined frequency, there is another frequency fx that can meet the equations above, the frequency set is considered to be third-order intermodulation interference, otherwise the frequency set is free from third-order intermodulation interference.
[0046] The frequency that causes adjacent channel interference meets fi-fj = 1CPS (1 channel spacing). If in the frequency set (f 1, f2, ..., fL) the difference between any two frequencies fi, fj is equal to a channel spacing, the frequency set is considered with the interference of adjacent channels, otherwise, the frequency set is free from adjacent channel interference.
[0047] A set of frequencies that meet both third-order intermodulation non-interference conditions and no adjacent channel interference is referred to as a third-order intermodulation interference frequency and adjacent channel interference free set.
[0048] 4. When the distance between the subscriber units exceeds the reuse distance S (S> 0, the reuse distance S is determined by the radio's transmission power), the same zone number can be reused, as shown in Figure 7 In Figure 7, the region with a white background is region 1 and the region with a bar bottom is region 2, and portions with the same background belong to the same region. Zones with the same numbers use the same set of frequencies free from third-order intermodulation interference and adjacent channel interference. The distance is a reuse of S km, and the zone numbers can be reused when the distance is greater than the reuse distance.
[0049] (2) Illustration of traffic and the number of users that a zone is capable of providing.
[0050] 1. Com base no percentual de chamadas perdiddas B% e o número de canais L (o número de canais de tráfego é L-1), determinar o tráfego total de uma zona como Y (L-1, B), observando-se a tabela de Erlang. 2. Com base no número médio de chamadas n e a duração média das chamadas S em um período T, determinar o tráfego médio por usuário como y = n * S / T. 3. Com base no tráfego total Y e o tráfego médio por usuário, determinar a capacidade do sistema como N = Y / y = Y (L-1, B) / (n * S / T). 4. Supondo-se que o percentual chamada perdidas é de 10%, o tráfego médio por usuário é 0.033 (em média, cada usuário faz uma chamada a cada 5 minutos, e a duração de cada chamada é 10 s), a relação entre o número de canais L e a capacidade da zona é mostrada na tabela a seguir:
[0051] In the following description, how to set up a conversation channel and how to select a conversation mode is illustrated in detail.
[0052] (1) Communication within a zone uses the technology of automatically configuring an idle channel, of which process 1200 is as follows and, as shown in Figure 12: Step 1201, divide the L channels in each zone as a control channel and L-1 traffic channels, as shown in Figure 8. In Figure 8, Zone 0, Zone 1, Zone 2, Zone 3, Zone 4, Zone 5 , Zone 6, Zone 7, Zone 8, Zone 9, Zone 10 Zone N-1, Zone N are shown. For example, for Zone 0, in channels L CH0, CH1, CH2, CH3, CH4, CH5, CH6, ..., chL-1, channel CH0 is defined as the control channel, and the other L-1 CH1 ~ chL-1 channels are defined as traffic channels. To facilitate the illustration, it is assumed that for each of the zones, CH0 is the control channel, and ch1 ~ chL-1 are traffic channels. Step 1202, when in standby mode, all radios in a zone remain on the CH0 control channel. Step 1203, determine if a user initiates a call, if so, proceed to step 1204, and if not, continue to remain in the control channel and waiting for a call. Step 1204, if a radio user in the zone initiates a call, the radio automatically searches for an idle channel in the ch1 ~ chL-1 traffic channels. Step 1205, return to the control channel and send an instruction to notify the called radio to switch to the desired channel idle for communication. Step 1206, after communication is complete, the caller and the called radio returning to the CH0 control channel to keep waiting.
[0053] (2) Implementation of the self-addressing call.
[0054] There are two ways to implement a self-addressing call: 1. release the traffic channel after the conversation is completed, or 2. release the traffic channel after the PTT button is released.
[0055] A. Next, a 1300 call procedure is illustrated taking the case of clearing the traffic channel after the conversation is completed as an example, which is shown in Figure 13.
[0056] The radio on the control channel initiates a call when the user presses the Push to talk (PTT) button - Press to talk -, and the following steps are performed: Step 1301, scanning all traffic channels on the subscriber unit to an idle traffic channel is found, and determining the channel number of the traffic channel; Step 1302, initiate a call setup request instruction, which contains the channel number; Step 1303, the calling radio and the calling radio enter the specified traffic channel together; Step 1304, the calling radio and the calling radio communicate (such as transmitting voice call information) with each other on the specified traffic channel; Step 1305, after the PPT button is released, determine if the conversation is finished or if the pre-set call reset time is active. If the conversation is not over or the call reset time is not active, proceed to step 1306, if the conversation is over or the reset time is active, proceed to step 1307, and Step 1306, still occupying the traffic channel for the continuation of the call; When the PTT button is pressed the next time, there is no need to scan the idle channels, and the voice is transmitted directly on the traffic channel, which saves time to reconfigure the call, has no effect on the conversation normal use of users, and also reduces the complexity for communication. Step 1307, if the conversation is over or the predefined call reset time is active, the calling radio will spontaneously send an end of conversation instruction or automatically end the call, where the call reset time can be set according to according to practical needs; Step 1308, the caller and the called radio release the traffic channel and return to the control channel to wait.
[0057] B. Next, the call procedure is illustrated considering the case of releasing the traffic channel, by releasing the PPT button, as an example.
[0058] As shown in Figure 9 and Figure 14, once user A and user C press the PPT buttons on the terminals while remaining on the control channel to initiate a call, the following steps are performed by a call processing center. Step 1401, scan all traffic channels in the zone until an idle traffic channel is found, and determine the channel number of the traffic channel. Step 1402, initiate a configuration request call, which contains the channel number. Step 1403, the caller and the called radio entering the traffic channel together. Step 1404, start transmitting call information. Step 1405, release the PPT button to complete the call, and return to the control channel for the wait.
[0059] Detailed description is made using user A in Figure 9 as an example (in Figure 9, the control channel is labeled CCH, the traffic channel is labeled TCH): after user A presses the PPT button and initiates a called user group B and F, all traffic channels in the zone are scanned and TCH1 is determined as the idle traffic channel; a group call instruction is initiated on the CCH control channel to notify users B and F to enter the TCH traffic channel in order to initiate the transmission of call information. After the PPT button is released, that is, the call is completed, users A, B and F return to the CCH control channel.
[0060] As for user C, who initiates a user group call D and E, all traffic channels in the zone are scanned and TCH 2 is determined as the idle traffic channel; a group call instruction is initiated on the CCH control channel to notify users D and E to enter the TCH 2 traffic channel in order to initiate the transmission of call information. After the PPT button is released, that is, the call is completed, users C, D and E return to the CCH control channel.
[0061] One or more examples in which the method of communication is applied are illustrated below in detail.
[0062] The main advantages and functions of the present invention are illustrated by taking a free public band that will be put in place in Shenzhen Province in China as an example.
[0063] (1) Assuming that the free public band is a 1 MHz frequency band, and 6.25K narrowband technology is adopted, 1 MHz frequency points can provide 160 conversation channels. Assuming that all 10 channels constitute a zone, the 1 MHz frequency points can provide 160/10 = 16 zones in total, that is, 16 subscriber units in a communication region (as with a 2 km wide communication) can be attended to, while no mutual interference is caused. In the drawing, the region with a white background is region 1 and the region with a bar bottom is region 2, and portions with the same background belong to the same region. The same zones with the same name use the same frequency band, the zone's reuse distance is, for example, but not limited to, 2 km, and when the distance is greater than reuse, the same zone can be reused. The specific numerical values in this document are for description purposes only and are not intended to limit the present invention.
[0064] Since this goes beyond the communication range, for example, of two kilometers, the 16 zones can be reused, that is, the frequency band above 1MHz can be provided to another 16 subscriber units, as shown in Figure 10 .
[0065] Likewise, by partitioning and reusing zones, 1 MHz free frequency points can serve users well, without causing mutual interference.
[0066] (2) The operation in a group is illustrated by taking a subscriber unit zone 0 as an example. As shown in Figure 11.10 channels of zone 0 are divided as a control channel CH0 (channel 0) and 9 channels of traffic ch1 ~ CH9 (channel 1 ~ channel 9). Initially, all radios in the subscriber unit remain on the CH0 control channel. The caller first searches ch1 ~ CH9 to find an idle traffic channel, then goes back to the control channel, sends an instruction to a called radio, notifies the called radio to switch to the idle traffic channel together with the caller, in order to conduct the conversation. After the conversation is over, all radios return to the CH0 control channel to wait.
[0067] (3) Illustration of traffic and number of users that can be provided by the subscriber units in this example.
[0068] 1. O número de canais em uma zona é 10 (o número de canais de tráfego é de 9), e assumindo um percentual aceitável de perda de chamadas de 10%, observando-se a fórmula de Ire, o tráfego do sistema que pode ser fornecido por uma Zona de é Y = Y (9,10) = 6,546 Erl. 2. Supondo-se que, em média, cada usuário do terminal faz uma chamada a cada 5 minutos, e a duração de cada chamada é de 10 s, o tráfego médio por usuário é calculada como y = 10s / (5 * 60) = 0.033Erl. 3. Portanto, o número de usuários de terminais que o sistema pode acomodar é N = Y / y = 6.546Erl/0.033Erl « 196. Em outras palavras, cada Zona poderá fornecer uma capacidade de sistema de cerca de 196 rádios. The calculation procedure: 1. The number of channels in a zone is 10 (the number of traffic channels is 9), and assuming an acceptable percentage of call loss of 10%, observing the formula for Ire, the system traffic that can be provided by a Zone is Y = Y (9.10) = 6.546 Erl. 2. Assuming that, on average, each terminal user makes a call every 5 minutes, and the duration of each call is 10 s, the average traffic per user is calculated as y = 10s / (5 * 60) = 0.033Erl. 3. Therefore, the number of terminal users that the system can accommodate is N = Y / y = 6.546Erl / 0.033Erl «196. In other words, each Zone will be able to provide a system capacity of about 196 radios.
[0069] Figure 18 is a structural schematic diagram of a 1800 radio according to an embodiment of the present invention. The 1800 radio includes a 1801 configuration unit and a 1802 standby processing unit.
[0070] The configuration unit 1801 is adapted to acquire, based on the zone to which the radio belongs, the corresponding channel resource information for the zone, and to determine a control channel and traffic channels available to the radio, the number of radio channels. traffic is greater than or equal to 2; different zones correspond to different channel resources.
[0071] The 1802 standby processing unit is adapted to remain in the control channel when in standby mode, where the control channel is determined by the configuration unit.
[0072] Figure 19 is a structural schematic diagram of a 1900 radio according to an embodiment of the present invention. In addition to the 1801 tuning unit and the 1802 standby processing unit in Figure 18, the 1900 radio also includes a 1803 zone search unit and a 1804 zone configuration unit. The 1803 zone search unit is adapted to search an idle zone and define the searched zone idle as the zone to which the radio belongs. The zone configuration unit 1804 is adapted to define a predetermined subset as the zone to which the radio belongs.
[0073] Although the zone search unit 1803 and the zone configuration unit 1804 are shown in Figure 19, one or both can be selected in practice, and the present invention is not so limited. Figure 19 is for illustration only and is not intended to limit the present invention.
[0074] Figure 20 is a structural schematic diagram of a radio 2000 according to another embodiment of the present invention. In addition to the units in Figure 19, the radio 2000 also includes a 1805 call initiation unit, a first 1806 conversation configuration unit, and a 1807 channel release unit.
[0075] The 1805 call initiation unit is adapted to search for an idle channel by looking for traffic channels when a call is initiated, and to send, through the control channel, a call setup request instruction containing a channel number of the call channel. idle traffic, in order to notify a radio called to switch to the idle traffic channel to establish communication.
[0076] The first 1806 conversation configuration unit is adapted to enter the idle traffic channel and establish communication with the called radio after the 1805 call initiation unit sends the call configuration request instruction.
[0077] The channel release unit 1807 is adapted to release the idle traffic channel and return to the control channel to continue waiting.
[0078] The channel release unit 1807 in Figure 20 includes a first channel release unit (not shown), and the first channel release unit is adapted to release, after the radio's PPT button is released, the traffic channel idle and return to the control channel to continue waiting. In another embodiment of the present invention, the channel release unit 1807 includes a second channel release unit (not shown), and the second channel release unit is adapted to release, after the radio's PPT button is released and the call reset time is active, the traffic channel idle and return to the control channel to continue waiting. In another embodiment of the present invention, the channel release unit 1807 includes a third channel release unit (not shown), and the third channel release unit is adapted for release, after communication is completed, the channel idle traffic and return to the control channel to continue waiting.
[0079] The first channel release unit, the second channel release unit and the third channel release unit can be included in the radio in whole or in part. When the radio includes two or all of them, the user can select one of the first channel release unit, second channel release unit and the third channel release unit as needed to implement the channel release action.
[0080] In one embodiment of the present invention, any of the radios in Figures 18-20 may further include a second conversation setup unit (not shown), and the second conversation setup unit is adapted to acquire, after an order instruction call setup is received from the control channel, a channel number from a traffic channel specified in the incoming call setup order instruction, and to enter the specified traffic channel to establish communication with the caller.
[0081] Figure 21 shows a schematic flow chart of a communication method 2100 applicable to a radio according to an embodiment of the present invention. The method of communication includes: Step 2101, I will divide different channels into more than two zones, where different zones include different channels, and each zone includes a control channel and two or more traffic channels; Step 2102, define for the radio one of the zones to which the radio belongs, in which the radios that belong to the same zone belong to the same subscriber unit; Step 2103, based on the zone to which the radio belongs, the radio acquires corresponding zone resource information and determines a control channel and traffic channels for the radio, and Step 2104, the radio remains on the control channel when it is on hold searching for radio traffic channels and establishing communication on an idle traffic channel when a call is initiated.
[0082] In one embodiment of the present invention, the communication method 2100 applicable to the radio, the control channel and the idle traffic channel used by the radio are channels that do not have third-order intermodulation interference and / or have no adjacent interference channel between them .
[0083] Figure 22 shows a structural schematic diagram of a communication system 2200 applicable to radios according to an embodiment of the present invention. The communication system 220 includes more than two radios (Radio 1, radio 2, ..., radio n, where n> 2), and each radio belongs to a zone, where the zone includes a control channel and two or more traffic channels and different zones include different channels. The radios that belong to the same zone are in the control channel of the same zone, in case of waiting, look for the traffic channels of the same zone and establish a communication in an idle wanted traffic channel when a call is initiated. For the specific communication method or communication process between the radios, you can consult the description above and figures 1 to 21, which will not be illustrated in detail here.
[0084] In the 2200 communication system, assuming that radio 1 and radio 2 belong to the same zone 1, while radio n belongs to another zone 2, when radio 1 initiates a call to radio 2, they can communicate with each other the others as shown and described in Figure 21. The radio cannot communicate with other radios that belong to zone 2.
[0085] In one embodiment of the present invention, the control channel and traffic channels used in the 2200 communication system applicable to the radios are channels that do not have third-order intermodulation interference and / or without interference from adjacent channels.
[0086] For the specific use of the radio provided by the embodiment of the present invention, the above description about the embodiment of the method can be consulted.
[0087] How to achieve the object of the present invention, configuring frequency and channel configuration is illustrated below with reference to the description above.
[0088] 1. Interferência entre unidades de assinantes é evitada. Unidades de assinantes diferentes utilizam conjuntos de frequências diferentes livres de interferência de intermodulação de terceira ordem e interferência de canal adjacente, de modo que não há colisão durante a comunicação, e, assim, efetivamente interferência de canal entre as unidades de assinante é evitada. 2. Não há nenhuma interferência dentro de uma unidade de assinante. Usuários na mesma unidade de assinante usam os canais que são divididos com base em frequências livres de interferência de intermodulação de terceira ordem e interferência do canal adjacente e estão livres de interferências mútuas, e, assim, a qualidade de conversaçãoção é assegurada. 3. Eficiência de utilização de Canal é melhorada. Múltiplos canais podem ser atribuídos para uma unidade de assinante, por exemplo, na concretização anterior, uma unidade de assinante tem 9 canais de conversaçãoção no todo, o que é suficiente para os usuários de extremidade intermediária e os usuários de extremidade inferior, mesmo no caso de uso frequente, e que pode garantir a eficiência de conversaçãoção e melhorar a eficiência de utilização do canal, evitando assim desperdício de canais. 4. Atraso de chamada é reduzida. Usando esse método, cada unidade de assinante usa uma zona, e o número máximo total dos canais de tráfego na unidade de assinante é, por exemplo, 9 na concretização acima, portanto, apenas 9 canais são necessários para serem pesquisados até mesmo no mais movimentado caso, portanto, o atraso é reduzido consideravelmente. 5. Colisão de chamada é evitada. Dividindo-se como zonas, o número de canais de controle é maior, o tráfego de cada canal de controle é menor e, portanto, a probabilidade de colisão é reduzida. (1) frequency setting 1. Interference between subscriber units is avoided. Different subscriber units use sets of different frequencies free of interference from third-order intermodulation and adjacent channel interference, so that there is no collision during communication, and thus effectively channel interference between subscriber units is avoided. 2. There is no interference within a subscriber unit. Users on the same subscriber unit use channels that are divided based on frequencies free from interference from third-order intermodulation and interference from the adjacent channel and are free from mutual interference, and thus the quality of conversation is ensured. 3. Channel usage efficiency is improved. Multiple channels can be assigned to one subscriber unit, for example, in the previous embodiment, a subscriber unit has 9 conversation channels in all, which is sufficient for middle-end users and lower-end users, even in the case of frequent use, and that can guarantee the efficiency of conversation and improve the efficiency of use of the channel, thus avoiding waste of channels. 4. Call delay is reduced. Using this method, each subscriber unit uses a zone, and the maximum total number of traffic channels in the subscriber unit is, for example, 9 in the above embodiment, so only 9 channels are needed to be searched even in the busiest. therefore, the delay is reduced considerably. 5. Call collision is avoided. Dividing as zones, the number of control channels is greater, the traffic of each control channel is less and, therefore, the probability of collision is reduced.
[0089] 1. Eiciência de utilização de canal é melhorada. Uma vez que os canais de conversaçãoção de cada grupo de comunicação nao são fixos, isto é, os canais de conversaçãoção, não estão em uma relação um para um com os canais de tráfego, o canal pode ser liberado imediatamente após cada conversação terminar, de forma a ser utilizado por outros grupos de conversaçãoção. 2. Interferência dentro de uma zona é evitada. Canais ociosos são procurados automaticamente, assim que o canal que está sendo usado ou sofre interferência pode ser evitado, assim, melhorando a eficiência e evitando a situação de causar interferências ou ser interferido. 3. A probabilidade de erro de julgamento de canais ocioso é efetivamente evitada. Usando “a liberação de canal de tráfego quando da liberação do botão PPT", como o método para implementar a chamada de auto-endereçamento, todos os rádios voltarão para o canal de controle para espera, quando não realizando transmissão ou recebendo. Isso pode efetivamente evitar o erro de julgamento no intervalo de conversaçãos em canais, o que ocorreria se o modo de "liberação de canal de tráfego após a conversação está concluída" é utilizado. (2) Channel configuration 1. Efficiency of channel usage is improved. Since the conversation channels of each communication group are not fixed, that is, the conversation channels, are not in a one-to-one relationship with the traffic channels, the channel can be released immediately after each conversation ends. to be used by other conversation groups. 2. Interference within a zone is avoided. Idle channels are searched automatically, so the channel being used or interfered can be avoided, thus improving efficiency and avoiding the situation of causing interference or being interfered with. 3. The likelihood of idle channel misjudgment is effectively avoided. Using “traffic channel release when PPT button is released” as the method to implement the auto-addressing call, all radios will return to the control channel to wait, when not transmitting or receiving. This can effectively avoid error of judgment in the conversation interval on channels, which would occur if the "traffic channel release after conversation is completed" mode is used.
[0090] By using the embodiments of the present invention, the conflict and interference of frequency point resources can be avoided. In addition, the most challenging problem encountered by radio users can be solved. In the present invention, the efficiency of using frequency bands is high, and the international specifications for using the resources of the frequency and trend bands are met. In the present invention, the transition of the radio from "analog" to "digital" is implemented, the users' habit is followed to a large extent, and the requirement to quickly create a call is met.
[0091] In the present invention, by assigning radios that belong to different subscriber units to different zones, radios that belong to the same subscriber unit conduct communication within the zone and will not interfere with radios in other zones. The fact that different zones use different channel resources avoids channel interference between different zones, avoids clutter in the management of channel resources, avoids the mass use of some frequency bands and thus causes traffic congestion, as well as low frequency bandwidth efficiency, that is, it reduces the likelihood of call collisions. In addition, when making a call, radios only need to search for frequency resources in the area to which the radios belong, instead of searching for all frequency resources, which reduces the time required to establish a call. To summarize, the communication method and the radio provided by the present invention have the advantages of: 1. improving the efficiency of use of the frequency spectrum, 2. solving the problem of interference between the channels 3. shortening the time to set up a call ; 4. improve battery life, and 5. reduce the likelihood of call collisions. In addition, using frequency sets free from interference from third-order intermodulation and adjacent channel interference, the case of determining a busy channel as an idle channel or determining an idle channel as a busy channel will be prevented, and the likelihood of error of channel status judgment will be reduced considerably.
[0092] It should be noted that the above embodiments are used only to illustrate the technical solutions of the invention and are not intended to limit the invention. Although the present invention is illustrated with reference to preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the invention can be modified or equivalent alternately without departing from the spirit and scope of the present invention, and the modifications and alternatives fall within the scope of the claims of the invention.

权利要求:
Claims (9)
[0001]
Method for assigning channels to a radio characterized by comprising: divide different channels into more than two zones, where different zones cover different channels, and each zone comprises a control channel and two or more traffic channels; acquire, based on a zone to which the radio belongs, the corresponding resource information for the zone, and determining a control channel and traffic channels available to the radio, in which the zone to which the radio belongs is determined from more than two zones; stay in the control channel in case of waiting; search for an idle traffic channel only in the area to which the radio belongs, searching for traffic channels as determined when the call is initiated, in which the call is initiated by a user by pressing a PPT button; send, through the control channel, as determined, a call configuration request instruction containing an idle traffic channel number, in order to notify a radio called to switch to the idle traffic channel for the communication establishment; enter the idle traffic channel to establish communication with the called radio; and determine if a conversation with the called radio has ended or if the time to reset a predefined call ends when the PPT button to initiate a call is detected as unused; send an end-of-conversation instruction to the called radio or automatically end the call, releasing the idle traffic channel via the calling radio and the called radio and switching to the control channel to wait for the next call if the conversation is determined to when the called radio has ended or the time for resetting the default call has ended; and occupy the idle traffic channel via the caller's radio and the called radio to continue the call, if it is determined that the conversation with the called radio has not ended and the default call reset time has not ended, in which the caller's radio and the called radio continues to communicate on the idle traffic channel.
[0002]
Method for assigning radio channels according to claim 1, characterized in that it further comprises: search for an idle zone, and define the searched zone idle as the zone to which the radio belongs and / or; define a predetermined zone as the zone to which the radio belongs.
[0003]
Method for assigning radio channels according to claim 1 or 2, characterized in that it further comprises: after receiving a call setup order instruction from the control channel, acquire a channel number from a specified traffic channel from the incoming call setup order instruction; and enter the specified traffic channel to establish communication with a caller.
[0004]
Method for assigning channels to a radio according to claim 1 or 2, characterized in that the control channel and the idle channel are channels having no third-order intermodulation interference and / or having no interference from adjacent channels.
[0005]
Radio characterized by understanding: a configuration unit (1801) adapted to divide different channels into more than two zones, in which different zones encompass different channels, and each zone comprises a control channel and two or more traffic channels; acquire, based on a zone to which the radio belongs, information of corresponding channel resources of the zone, and to determine a control channel and service channel available for the radio; and a waiting processing unit (1802) adapted to remain in the control channel, which is determined by the configuration unit, in the case of waiting; a call initiation unit (1805) adapted to search for an idle traffic channel only in the zone to which the radio belongs, searching for traffic channels when the call is initiated, in which the call is initiated by a user by pressing a PPT button , and send, through the control channel, a call setup request instruction containing a channel number of the idle traffic channel, in order to notify a radio called to switch to the idle traffic channel for the communication establishment; a first conversation configuration unit (1806) adapted to enter the idle traffic channel to establish communication with the called radio after the call initiation unit sends the call configuration request instruction; and a channel release unit (1807) adapted for: determine if a conversation with the called radio has ended or if the time to reset a predefined call ends when the PPT button to initiate a call is detected as unused; send an end of conversation instruction to the called radio or automatically end the call, releasing the idle traffic channel via the caller's radio and the called radio and switching to the control channel to wait for the next call, if it is determined that the call conversation with the called radio has ended or the time to reset the default call has ended; and occupy the idle traffic channel via the caller's radio and the called radio to continue the call, if it is determined that the conversation with the called radio has not ended and the default call reset time has not ended, in which the caller's radio and the called radio continue to communicate on the idle traffic channel.
[0006]
Radio, according to claim 5, characterized by still comprising: a zone search unit (1803) adapted to search for an idle zone and define the searched zone idle as the zone to which the radio belongs; and / or a zone configuration unit (1804) adapted to define a predetermined zone as the zone to which the radio belongs.
[0007]
Radio according to claim 5 or 6, characterized in that it further comprises: a second conversation setup unit adapted to acquire, after a call setup request instruction is received from the control channel, a channel number for a traffic channel specified in the call setup request instruction, and to enter specified traffic channel to establish communication with the caller.
[0008]
Communication method applicable to a radio characterized by comprising: divide different channels into more than two zones, where different zones cover different channels, and each zone comprises a control channel and two or more traffic channels; define for the radio one of the zones to which the radio belongs, where the radios belonging to the same zone belong to the same subscriber unit; and based on the zone to which the radio belongs, acquire corresponding resource information for the zone and determine a control channel and traffic channels for the radio; and stay on the control channel when the radio is on standby, searching for radio traffic channels and establish communication on an idle traffic channel when a call is initiated; where the method further comprises: determine if a conversation with the called radio has ended or if the time to reset a predefined call ends when the PPT button to initiate a call is detected as unused; send an end of conversation instruction to the called radio or automatically end the call, releasing the idle traffic channel via the caller's radio and the called radio and switching to the control channel to wait for the next call, if it is determined that the call conversation with the called radio has ended or the time to reset the default call has ended; and occupy the idle traffic channel via the caller's radio and the called radio to continue the call, if it is determined that the conversation with the called radio has not ended and the default call reset time has not ended, in which the caller's radio and the called radio continue to communicate on the idle traffic channel.
[0009]
Communication system applicable to radios characterized by comprising: more than two radios, each of which belongs to one of more than two zones, where each of the more than two zones comprises a control channel and two or more traffic channels, different zones encompass different channels and radios, which belong to the same zone, and different from the more than two zones comprise different channels; in which the radios that belong to the same zone are configured to remain in a control channel of the same zone in case of waiting, search for traffic channels in the same zone only in the zone to which the radio belongs and establish communication in a traffic channel idle when a call is initiated, where the call is initiated by a user by pressing a PPT button; where each radio is configured to: determine if a conversation with the called radio has ended or if the time to reset a predefined call ends when the PPT button to initiate a call is detected as unused; send an end of conversation instruction to the called radio or automatically end the call, releasing the idle traffic channel via the caller's radio and the called radio and switching to the control channel to wait for the next call, if it is determined that the call conversation with the called radio has ended or the time to reset the default call has ended; and occupy the idle traffic channel via the caller's radio and the called radio to continue the call, if it is determined that the conversation with the called radio has not ended and the default call reset time has not ended, in which the caller's radio and the called radio continue to communicate on the idle traffic channel.

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法律状态:
2019-01-08| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|

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2020-01-21| B15K| Others concerning applications: alteration of classification|Free format text: A CLASSIFICACAO ANTERIOR ERA: H04Q 5/24 Ipc: H04W 72/04 (2009.01), H04W 16/12 (2009.01), H04W 4 |

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2020-01-21| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|

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2021-02-09| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|

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2021-03-23| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 23/03/2021, OBSERVADAS AS CONDICOES LEGAIS. |

优先权:

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申请号 | 申请日 | 专利标题

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CN200910189874A|CN101765029A|2009-09-04|2009-09-04|Self-addressed communication method applied to interphone|

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CN200910189874.5|2009-09-04|

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PCT/CN2010/076629|WO2011026441A1|2009-09-04|2010-09-03|Method for distributing channels for interphone, communication method, system and interphone|

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